Excellent article, I had a bias to in person voting and had not heard of in person voting with "Floating Receipts" before. I thought this was a receipt indicating only that the voter had voted, I did not realize this apparently involves taking home a ballot from another (unknown) voter!?
Thanks (OP here). Floating Receipts hasn't really had the attention it deserves. Very few papers discuss it, even though it's very simple and has excellent security properties.